Extensible middle supporting mechanism for bridging operation and chassis truck

Abstract

The embodiment of the invention provides an extensible middle supporting mechanism for bridging operation and a chassis truck. The middle supporting mechanism comprises a guide seat, a middle supporting oil cylinder, a base, a middle supporting turnover oil cylinder, a supporting swing arm and an extension swing arm; the guide seat is used for supporting an inner main beam part of the bridge during operation and bearing the weight of the bridge; the middle supporting oil cylinder is embedded in the supporting arm of the guide seat, and the height of the guide seat is controlled through stretching and retracting of the oil cylinder; the whole middle supporting mechanism is fixed on a deck in the middle of the chassis truck through the base; one end of the middle supporting overturning oil cylinder is fixed to the base, the other end of the middle supporting overturning oil cylinder is fixed to the supporting swing arm upper double-lug base, and rising or falling of the supporting swing arm is achieved through stretching and retracting of the oil cylinder; the supporting swing arm is used for supporting an outer main beam of a bridge in the operation process, one end of the supporting swing arm is fixed to the base through a bolt, and the rotating function can be achieved. The extension swing arm is used for supporting an outer main beam of a bridge in the wider bridge operation process, one end of the extension swing arm is connected with the supporting swing arm through a bolt, and the rotation function can be achieved. And the operation requirements of wider bridges can be met, operation is convenient and fast, and stability and reliability of operation are guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of bridge erection equipment, and in particular to an extendable middle support mechanism and chassis vehicle for bridge erection operations. Background Art

[0002] During the driving and operation of bridge equipment, the central support mechanism is required to support the overall weight of the bridge. Due to the limitation of the overall weight of the equipment, the central support mechanism is required to be light and easy to operate, and can meet the requirements of different erection conditions. The existing central support mechanism is connected to the chassis deck by symmetrical support mechanisms on both sides of the middle of the chassis, which serves as a fulcrum during the transportation and operation of the bridge to support the overall weight of the bridge.

[0003] To ensure safety during operation, the existing middle support mechanism can only support bridges of one width and cannot adapt to bridges of different widths. When operating bridges of different widths, the corresponding middle support mechanism can only be redesigned, which is time-consuming and laborious and will cause secondary damage to the chassis. Summary of the invention

[0004] In order to solve the above problems, an embodiment of the present invention provides an extendable middle support mechanism for bridge erection operations, which is used to adapt to bridges of different widths during erection operations or removal operations.

[0005] An embodiment of the present invention provides an extendable middle support mechanism for bridge erection operations, the middle support mechanism comprising:

[0006] Guide seat, middle support cylinder, base, middle support tilting cylinder, support swing arm;

[0007] The guide seat is used to hold up the inner main beam of the bridge during operation and bear the weight of the bridge;

[0008] The middle support oil cylinder is embedded in the support arm of the guide seat, and the height of the guide seat is controlled by the extension and retraction of the oil cylinder;

[0009] The base fixes the entire middle support mechanism on the deck in the middle of the chassis vehicle;

[0010] The middle supporting tilting oil cylinder has one end fixed on the base and the other end fixed on the double-ear seat on the supporting swing arm, and the raising and lowering of the supporting swing arm is realized by the extension and retraction of the oil cylinder;

[0011] The supporting swing arm is used to support the outer main beam of the bridge during operation, and one end is fixed to the base by a pin to realize the rotation function.

[0012] In some embodiments, the middle support mechanism further comprises:

[0013] The extended swing arm is used to support the outer main beam of the bridge during the operation of a wider bridge. One end of the extended swing arm is connected to the supporting swing arm through a pin to achieve a rotation function.

[0014] In some embodiments, the two middle support mechanisms are correspondingly arranged at two sides above the middle deck of the chassis vehicle, behind the cab.

[0015] In some embodiments, during the travel of the equipment, the support swing arm is raised to support the weight of the bridge. During the erection and removal of the bridge, the support swing arm is raised to assist the operation to reduce the deformation of other erection mechanisms caused by the weight of the bridge.

[0016] In some embodiments, the extended swing arm and the supporting swing arm are hinged and auxiliary supported by special-shaped blocks. When support is not needed, they are separated by relying on the gravity of the extended swing arm without affecting the normal operation of the equipment.

[0017] In some embodiments, the bottom of the base is welded to the deck in the middle of the chassis vehicle, and is connected to the supporting swing arm and the middle supporting flip cylinder by a hinged connection, thereby serving as a support for the middle flip cylinder.

[0018] In some embodiments, the bottom of the supporting swing arm is welded to the middle supporting tilting cylinder, and the raising and lowering of the swing arm during bridge operation is achieved through the extension and retraction of the middle supporting tilting cylinder.

[0019] In some embodiments, the extended swing arm and the supporting swing arm achieve supporting operations on the same plane through two blocks. When support is not needed, the extended support is naturally separated from the supporting swing arm by its own gravity.

[0020] An embodiment of the present invention provides a chassis vehicle, which is provided with a middle support mechanism as described in any of the above embodiments, and the two middle support mechanisms are correspondingly arranged at two sides above the middle deck of the chassis vehicle and behind the cab.

[0021] The beneficial effects of the above embodiments of the present invention include:

[0022] The overall structural form of the middle supporting mechanism is optimized. By setting an extension mechanism on the outer edge of the middle supporting mechanism, it can adapt to the operational needs of erecting or withdrawing bridges of wider specifications. The operation is convenient and easy, ensuring stable and reliable operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings illustrate generally, by way of example and not limitation, various embodiments discussed herein.

[0024] Figure 1This is a schematic diagram of the structure of an extendable middle support mechanism for bridge erection operations according to an embodiment of the present invention;

[0025] Figure 2 The main view of the chassis vehicle provided with a middle support mechanism;

[0026] Figure 3 It is a top view of a chassis vehicle provided with a middle support mechanism.

[0027] Explanation of symbols:

[0028] 1-guide seat; 2-middle supporting cylinder; 3-base; 4-middle supporting tilting cylinder; 5-supporting swing arm; 6-extension swing arm; 100-middle supporting mechanism. DETAILED DESCRIPTION

[0029] In order to enable a more detailed understanding of the features and technical contents of the embodiments of the present application, the implementation of the embodiments of the present application is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present application.

[0030] In the embodiments of the present application, it should be noted that, unless otherwise specified and limited, the term "connection" should be understood in a broad sense. For example, it can be an electrical connection or a connection between two components. It can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0031] It should be noted that the terms "first\second\third" involved in the embodiments of the present application are only used to distinguish similar objects, and do not represent a specific order for the objects. It is understandable that the specific order or sequence of "first\second\third" can be interchanged where permitted. It should be understood that the objects distinguished by "first\second\third" can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0032] The following is combined with Figures 1 to 3 The extendable middle support mechanism for bridge erection operation according to an embodiment of the present invention is described in detail.

[0033] Figure 1 This is a schematic diagram of the structure of an extendable middle support mechanism for bridge erection operations according to an embodiment of the present invention.

[0034] The embodiment of the present invention provides a middle support mechanism that can be extended for bridge erection operations, such as Figure 1 As shown, the middle support mechanism 100 includes:

[0035] A guide seat (1), a middle supporting oil cylinder (2), a base (3), a middle supporting tilting oil cylinder (4), a supporting swing arm (5) and an extended swing arm (6).

[0036] The guide seat (1) is used to support the inner main beam part of the bridge during operation and bear the weight of the bridge.

[0037] The middle supporting oil cylinder (2) is embedded in the supporting arm of the guide seat (1), and the height of the guide seat (1) is controlled by telescoping the oil cylinder.

[0038] The base (3) fixes the entire middle support mechanism (100) on the deck in the middle of the chassis vehicle.

[0039] The middle supporting tilting oil cylinder (4) has one end fixed on the base (3) and the other end fixed on the double-ear seat on the supporting swing arm (5). The lifting and lowering of the supporting swing arm (5) is achieved by telescoping the oil cylinder.

[0040] The support swing arm (5) is used to support the outer main beam of the bridge during operation, and one end of the support swing arm is fixed to the base (3) by a latch to realize a rotation function.

[0041] In some embodiments, the middle support mechanism (100) further comprises:

[0042] The extended swing arm (6) is used to support the outer main beam of the bridge during the operation of a wider bridge. One end of the extended swing arm (6) is connected to the supporting swing arm (5) through a latch to realize a rotation function.

[0043] In some embodiments, Figure 2 and Figure 3 As shown, two middle support mechanisms (100) are correspondingly arranged at two sides above the middle deck of the chassis vehicle and behind the cab.

[0044] In some embodiments, during the travel of the equipment, the support swing arm (5) is raised to support the weight of the bridge. During the erection and withdrawal of the bridge, the support swing arm (5) is raised to assist the operation to reduce the deformation of other erection mechanisms due to the weight of the bridge.

[0045] In some embodiments, the extension swing arm (6) and the support swing arm (5) are hinged and auxiliaryly supported by special-shaped blocks. When support is not needed, they are separated by relying on the gravity of the extension swing arm (6) without affecting the normal operation of the equipment.

[0046] In some embodiments, the bottom of the base (3) is welded to the deck in the middle of the chassis vehicle, and is connected to the supporting swing arm (5) and the middle supporting tilting cylinder (4) in a hinged manner, thereby serving as a support for the middle tilting cylinder (4).

[0047] In some embodiments, the bottom of the supporting swing arm (5) is welded to the middle supporting tilting cylinder (4), and the raising and lowering of the swing arm during bridge operation is achieved through the extension and retraction of the middle supporting tilting cylinder (4).

[0048] In some embodiments, the extension swing arm (6) and the support swing arm (5) realize support operation on the same plane through two blocks. When support is not needed, the extension support is naturally separated from the support swing arm (5) by its own gravity.

[0049] An embodiment of the present invention provides a chassis vehicle, such as Figure 2 and Figure 3 As shown, a middle support mechanism (100) as in any of the above embodiments is provided, and two middle support mechanisms (100) are correspondingly arranged at the two sides above the middle deck of the chassis vehicle, behind the cab.

[0050] The central support mechanism is integrally arranged on both sides of the central deck of the chassis. During the driving process of the equipment, the support swing arm is raised to support the weight of the bridge. During the erection and withdrawal of the bridge, the support swing arm is raised to assist the operation to reduce the deformation of other erection mechanisms due to the weight of the bridge. During the operation process of different bridges, the extended swing arm and the support swing arm are hinged and auxiliaryly supported by special-shaped blocks. When support is not needed, they are separated by relying on the gravity of the extended swing arm without affecting the normal operation of the equipment.

[0051] The middle support mechanism of the above-mentioned embodiment of the present invention can adapt to the operational needs of erecting or withdrawing bridges of wider specifications by optimizing the overall structural form of the middle support mechanism and arranging an extension mechanism on the outer edge of the middle support mechanism. The operation is convenient and easy, and stable and reliable operation is ensured, thereby avoiding the need to design a corresponding middle support mechanism for bridges of different widths.

[0052] The technical solutions described in the embodiments of the present application can be combined arbitrarily without conflict.

[0053] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. An extendable middle support mechanism for bridge erection operations, characterized in that: The middle support mechanism comprises: Guide seat, middle support cylinder, base, middle support tilting cylinder and support swing arm; The guide seat is used to hold up the inner main beam of the bridge during operation and bear the weight of the bridge; The middle support oil cylinder is embedded in the support arm of the guide seat, and the height of the guide seat is controlled by the extension and retraction of the oil cylinder; The base fixes the entire middle support mechanism on the deck in the middle of the chassis vehicle; The middle support tilting oil cylinder has one end fixed on the base and the other end fixed on the double-ear seat on the support swing arm, and the lifting and lowering of the support swing arm are realized by the extension and retraction of the oil cylinder; The supporting swing arm is used to support the outer main beam of the bridge during operation, and one end is fixed to the base by a pin to realize the rotation function.

2. The extensible middle support mechanism for bridge erection according to claim 1, characterized in that: The middle support mechanism also includes: The extended swing arm is used to support the outer main beam of the bridge during operation to accommodate wider bridges. One end is connected to the supporting swing arm through a pin to achieve a rotation function.

3. The extendable middle support mechanism for bridge erection according to claim 1 or 2, characterized in that: The two middle support mechanisms are correspondingly arranged at two sides above the middle deck of the chassis vehicle and behind the cab.

4. The extensible middle support mechanism for bridge erection according to claim 3, characterized in that: During the travel of the equipment, the support swing arm is raised to support the weight of the bridge. During the erection and withdrawal of the bridge, the support swing arm is raised to assist the operation to reduce the deformation of other erection mechanisms caused by the weight of the bridge.

5. The extensible middle support mechanism for bridge erection according to claim 2, characterized in that: The extended swing arm and the supporting swing arm are hinged and auxiliary supported by special-shaped blocks. When support is not needed, they are separated by relying on the gravity of the extended swing arm without affecting the normal operation of the equipment.

6. The extensible middle support mechanism for bridge erection according to claim 1, characterized in that: The bottom of the base is welded on the deck in the middle of the chassis vehicle, and is connected to the supporting swing arm and the middle supporting flip cylinder in a hinged manner, serving as a support for the middle flip cylinder.

7. The extendable middle support mechanism for bridge erection according to claim 1, characterized in that: The bottom of the supporting swing arm is welded to the middle supporting tilting oil cylinder, and the raising or lowering of the swing arm during bridge operation is achieved through the extension and retraction of the middle supporting tilting oil cylinder.

8. The extendable middle support mechanism for bridge erection according to claim 2, characterized in that: The extension swing arm and the support swing arm realize support operation on the same plane through two blocks. When support is not needed, the extension support is naturally separated from the support swing arm through its own gravity.

9. A chassis vehicle, characterized in that: A middle support mechanism as described in any one of claims 1 to 8 is provided, and two of the middle support mechanisms are correspondingly arranged at two sides above the middle deck of the chassis vehicle, behind the cab.

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